Finding the Fourth Proportional to 1,434.23, 1,979.43 and 844.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,434.23 : 1,979.43 = 844.76 : x
2. Step 2: Convert to fraction form
   1,434.23/1,979.43 = 844.76/x
3. Step 3: Cross multiply
   1,434.23x = 1,979.43 × 844.76
4. Step 4: Simplify right side
   1,434.23x = 1,672,143.29
5. Step 5: Solve for x
   x = 1,672,143.29/1,434.23
6. Step 6: Final answer
   x = 1,165.88